Question 1051195
Two data points relating price and quantity.


Points are p and q and may be ordered pairs,  (p,q).
I am using lower case letters for the variables.
The points are  (8,1500) and (6,2500).


Linear fit the two points.  If you want to try point-slope form, then here:


{{{q-2500=((2500-1500)/(6-8))(p-6)}}}


A little bit of simplification:
{{{q-2500=(1000/(-2))(p-6)}}}

{{{q-2500=-500(p-6)}}}

...and keep going until you have q as a function of p
(or depending on how this is supposed to be shown, do as p as a function of q).